Metacaulk MC 150+ Firestop Sealant

Metacaulk MC 150+ Firestop Sealant


  • UL classified systems up to 4 hrs
  • Elastomeric
  • Non-sag
  • Mold inhibitor tested to ASTM G21
  • Tested to ASTM E814 (UL 1479) & ASTM E1966 (UL2079)
  • STC rating 65
  • 3 year shelf life
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SKU: 66648 66385 66383 66389 66424 66425 Categories: , Tag:

Product Description

Metacaulk® MC 150+ is an elastomeric, one-component, general purpose, fire-rated sealant and smoke seal for construction joints and through-penetrations. A water-based, non-sag caulking grade sealant that is easy to apply as well as to retrofit. Can be applied to horizontal and vertical surfaces. Cures to a paintable flexible seal. Suitable for areas of dynamic movement. Application temperature 40°F to 120°F. An economic choice for most common applications. Sound Transmission Class (STC) rating 65, The test was performed in accordance with ASTM E90, Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions.

Product Codes And Case Sizes
Product CodeSizeQuantityUPCInterleavedDimensionsCubic Feet
66648 10.3oz cartridge 12 021449666480 10021449666487 8x6x12 .34
66385 20.2oz Sausage Pk. 12 021449663854 10021449663851 9x14x7 .51
66383 30oz cartridge 12 021449663830 10021449663837 11x9x17 .97
66389 5 Gallon1021449663892 NA13 diax14 1.08
6642420.2 oz foil pack Gray12021449664240100214496642479x14x751
664255 gallon Gray1NA02144966425713 dia x 141.08


List of Approved Systems

FBC™ System Compatible indicates that this product has been tested, and is monitored on an ongoing basis, to assure its chemical compatibility with Flowguard Gold®, Blazemaster® and Corzan® piping systems and products made with TempRite® Technology.

The FBC System Compatible Logo, FBC™, FlowGuard Gold®, BlazeMaster®, Corzan® and TempRite® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.

Product Documents